THE son of an Alzheimer's sufferer who has been missing for four days has called on more people to help in the search efforts.
Concern is growing for Margaret Mangan (65), known as Peggy, after she went for a walk with her King Charles Spaniel dog and failed to return home on Tuesday.
The missing woman's son Jon told the Irish Independent she had now gone without medication for her illness for several days and called on more volunteers to assist in the search efforts.
"The help from volunteers has been great so far and we've had between 100 and 150 people out looking," he said.
"That is great and we really appreciate it and would ask for anyone at all out there who is able-bodied to assist the search. It's a case of the more the better," he said.
Peggy was wearing a white jacket and black trousers when she left her house on Mount Tallant Avenue in Terenure after 11am on Tuesday.
Gardai have appealed for members of the public in the Dublin area to check back gardens and sheds.
Jon Mangan said reports circulating online that the dog had been found were not true.
Gardai last night renewed their appeal for information on Mrs Mangan's whereabouts. They want to talk to anyone who saw or spoke to Mrs Mangan at the Charlestown Shopping Centre or Lanesboro area of Finglas between 8.30pm and 10pm on Tuesday. Anyone with information can contact the Garda Confidential Line on 1800 666 111 or Terenure garda station on (01) 666 6400.